Tubing assembly unit for boilers for use in connection with combustion on pressurized fluidized beds



FIG. 1 is a top view of the tubing assembly unit of the present invention;

FIG. 2 is a right side view of the tubing assembly unit of the present invention;

FIG. 3 is a left side view of the tubing assembly unit of the present invention;

FIG. 4 is a bottom view of the tubing assembly unit of the present invention;

FIG. 5 is a front view of the tubing assembly unit of the present invention; and,

FIG. 6 is a rear view of the tubing assembly unit of the present invention. 

The ornamental design for a tubing assembly unit for boilers for use in connection with combustion on pressurized fluidized beds, as shown. 